Coexistence of ferromagnetism and superconductivity in Pb/PbO core/shell nanoparticles

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52877

Title:	Coexistence of ferromagnetism and superconductivity in Pb/PbO core/shell nanoparticles
Authors:	Hsu,CK;Hsu,D;Wu,CM;Li,CY;Hung,CH;Lee,CH;Li,WH
Contributors:	物理學系
Keywords:	PARTICLES
Date:	2011
Issue Date:	2012-06-11 10:48:06 (UTC+8)
Publisher:	國立中央大學
Abstract:	We report on the observations of spontaneous spin polarized moments in 7.4 nm Pb/PbO nanoparticles, which give rise to re-entrantlike temperature profiles for the magnetic susceptibility and magnetization in the superconducting phase that develops below 6.86 K. Results reveal the existence of a magnetic component below T(C) and superconductivity remains at low temperatures. A 30-fold increase in the critical magnetic field is also found. Superconductivity mainly arises from the 5 nm Pb core, whereas the 1.2 nm PbO shell contributes to the appearance of a net magnetic moment in the 7.4 nm Pb/PbO core/shell particles. (C) 2011 American Institute of Physics. [doi:10.1063/1.3561766]
Relation:	JOURNAL OF APPLIED PHYSICS
Appears in Collections:	[Department of Physics] journal & Dissertation

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